Slow browser

After fidling around for allmost a year with a usrobotics 8054 (anyone intrested in buying it from me?). I've finally tossed it out the door and replaced it with the best money supposed to buy, a wrt54gs! :idea:

Did some tweaking , flashing, swearing, etc, and got it up and running pretty well besides a minor disconnect now and then(my apps don't freeze anymore and this router does'nt reboot evry 3 minutes!).

The only thing I notice is that when i browse the internet with firefox (ie has the same prob here), pages load much slower then they used to do! Is this a known isseu? any suggestions where to look?? I've been playing around with mtu settings but that did'nt do much.